Patanase is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Patanase is a prescription nasal spray used to treat nasal symptoms such as congestion, sneezing, and runny nose caused by seasonal allergies.

Patanase nasal spray is for use in adults and children at least 6 years old.

Before using Patanase, tell your doctor if you have any non-allergic conditions affecting the inside of your nose, such as a deviated septum.

Patanase may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert. Drinking alcohol can increase certain side effects of Patanase. Call your doctor if your symptoms do not improve, or if they get worse while using this medicine.

Use only as directed. Tell your doctor if you use other medicines or have other medical conditions or allergies.

Before using this medicine

You should not use Patanase if you are allergic to olopatadine.

Tell your doctor if you have other conditions that affect the inside of your nose.

It is not known whether olopatadine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using Patanase. It is not known whether olopatadine passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby. Do not give this medicine to a child younger than 6 years old without medical advice.

Not approved for use by anyone younger than 6 years old.

Use Patanase exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets.

Before your first use, shake the nasal spray well and prime it with 5 sprays into the air, until a fine mist appears. Spray away from your face. Prime again with 2 sprays whenever the medicine has not been used in longer than 7 days.

To use the Patanase nasal spray:

• Gently blow your nose before using the nasal spray.

• Insert the spray tip into your nostril, pointing it straight up into your nose. Press your other nostril closed with your finger and keep your head upright. Pump the spray and gently inhale at the same time.

• Use only the number of sprays prescribed by your doctor.

• Clean the pump nozzle with a clean, damp tissue and recap it.

• Prime the spray pump with at least 2 sprays any time it has been longer than 7 days since you last used it.

Call your doctor if your symptoms do not improve, or if they get worse.

Store at room temperature away from moisture and heat.

Throw away the bottle after 240 sprays have been used, even if there is still medicine left inside. If used daily, one bottle contains enough medicine for 30 days for an adult dose or 60 days for a child's dose.

Usual Adult Dose for Allergic Rhinitis:

2 sprays in each nostril twice a day

Use: For the relief of symptoms of seasonal allergic rhinitis

Usual Pediatric Dose for Allergic Rhinitis:

6 to 11 years: 1 spray in each nostril twice a day

12 years or older: 2 sprays in each nostril twice a day

Use: For the relief of symptoms of seasonal allergic rhinitis

You should not use Patanase if you are allergic to olopatadine.

Tell your doctor if you have other conditions that affect the inside of your nose.

It is not known whether olopatadine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using Patanase. It is not known whether olopatadine passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby. Do not give this medicine to a child younger than 6 years old without medical advice.

Not approved for use by anyone younger than 6 years old.

Use the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not use two doses at one time.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include feeling agitated or restless and then drowsy.

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Drinking alcohol with this medicine can cause side effects.

Avoid getting this medication in your eyes.

Get emergency medical help if you have signs of an allergic reaction to Patanase: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using Patanase and call your doctor at once if you have:

• nosebleed;

• painful sores inside your nose;

• fever; or

• pain or burning when you urinate.

Common Patanase side effects may include:

• runny or stuffy nose, nosebleeds;

• cough, throat pain or irritation;

• a bitter taste in your mouth;

• drowsiness;

• headache;

• fever;

• rash; or

• painful urination.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Using Patanase with other drugs that make you drowsy can worsen this effect. Ask your doctor before using opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Other drugs may interact with olopatadine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.